ISSN 1995-4301
(Print)

ISSN 2618-8406
(Online)

Current issues:

1 issue of the journal in 2024

4 issue of the journal in 2023

3 issue of the journal in 2023

2 issue of the journal in 2023

Online version of the journal


ExpandSelect viewing options



Effect of the cultivation medium composition on Dunaliella tertiolecta sensitivity to potassium dichromate

E.S. Stravinskene, Yu.S. Grigor’ev, T.L. Shashkova, M.A. Subbotin, M.A. Polosukhina
Section: Ecotoxicology
The effect of a model toxicant on the growth of the algae Dunaliella tertiolecta in Goldberg medium, prepared on the basis of solutions of various sea salt complexes, as well as NaCl alone solution, has been studied. The growth of algae in the controls was 10–15 times after 48 hours in all variants of media. Potassium dichromate at a concentration of 5 mg/L had little or no effect on the growth of the test culture in media prepared from the sea salt solutions. Simultaneously, the same concentration of potassium dichromate completely suppressed the algae growth in NaCl-media. The results of the chemical analysis of all the studied sea salt solutions showed a ratio of the main ions close to that of natural sea water. All studied samples of sea salt solutions contained 5 to 8% magnesium and calcium ions, which is a possible explanation for the lower sensitivity of Dunaliella tertiolecta to potassium dichromate in these media, since the hardness of the medium affects the bioavailability of toxicants for test organisms.
Keywords: Dunaliella tertiolecta, bioassay, potassium dichromate, cultivation medium, sea salts

View additional file

Article published in number 3 for 2021
DOI: 10.25750/1995-4301-2021-3-186-192
Views: 3
Рейтинг@Mail.ru

36, Moskovskya street, Kirov, 610000, Editorial Board "Theoretical and Applied Ecology."

Phone/fax: (8332) 37-02-77

e-mail: envjournal@vyatsu.ru

The journal was founded in 2007